Changes to files which gives a custom URL for the resource listing, but
fails with internal error
Changes to eclipse settings files
Moving the ApiListing to a separate package to switch between the default
api listing and the customized api listing easily through package
configuration in web.xml
Added the package for custom resource listing in web.xml
Changed the Resource Listing class to extend the ApiListing class rather
than JavaApiListing. This was causing the issues with the NPE
Fixed the annotations in the CustomerResource.java to fix the document
generation